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Finding the Fourth Proportional to 199,641.42, 275,295.41 and 131,571.30

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Solution

The fourth proportional to 199,641.42, 275,295.41 and 131,571.30 is: 181,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,641.42 : 275,295.41 = 131,571.30 : x
  2. Step 2: Convert to fraction form
    199,641.42/275,295.41 = 131,571.30/x
  3. Step 3: Cross multiply
    199,641.42x = 275,295.41 × 131,571.30
  4. Step 4: Simplify right side
    199,641.42x = 36,220,974,319.88
  5. Step 5: Solve for x
    x = 36,220,974,319.88/199,641.42
  6. Step 6: Final answer
    x = 181,430.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.